|Vub| from Exclusive Semileptonic B to pi Decays
| dc.creator | Flynn, Jonathan M | |
| dc.creator | Nieves, Juan | |
| dc.date | 2007-03-27 | |
| dc.date | 2007-05-17 | |
| dc.date.accessioned | 2026-07-07T11:22:53Z | |
| dc.date.available | 2026-07-07T11:22:53Z | |
| dc.description | We use Omnes representations of the form factors f_+ and f_0 for exclusive semileptonic B to pi decays, paying special attention to the treatment of the B* pole and its effect on f_+. We apply them to combine experimental partial branching fraction information with theoretical calculations of both form factors to extract |Vub|. The precision we achieve is competitive with the inclusive determination and we do not find a significant discrepancy between our result, |Vub| =(3.90+/-0.32+/-0.18)10^(-3), and the inclusive world average value, (4.45+/-0.20+/-0.26)10^(-3). | |
| dc.description | 10 pages, Latex, 2 figures; version accepted for publication | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0703284 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0703284 | |
| dc.identifier | Phys.Lett.B649:269-274,2007 | |
| dc.identifier | doi:10.1016/j.physletb.2007.04.028 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/194726 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | |Vub| from Exclusive Semileptonic B to pi Decays | |
| dc.type | text |